package org.regotto.common;

public class ListNode {
    public int val;
    public ListNode next;
    public ListNode() {}
    public ListNode(int val) { this.val = val; }
    public ListNode(int val, ListNode next) { this.val = val; this.next = next; }

    @Override
    public String toString() {
        StringBuilder res = new StringBuilder();
        for (ListNode cur = this; cur != null; cur = cur.next) {
            res = res.append(cur.val + " ");
        }
        return res.toString();
    }
}
